Controlling means for sliding closures.



H. G. VOIGHT.

CONTROLLING MEANSFOR SLIDING CLOSURES.

APPLICATION FILED Aus.za. 19:3. nENEwED Aue. I2. i915.

M j By MM Arrow/frs l H. e. vorlGHT. CONTROLLING MEANS FOR SLIDINGCLOSURES. APPLICATION F4I LED AUG.2B. |913- RENEWED AUG. l2, 1915.

Patented Nov. 14, 1916.

2 SHEETS-SHEET 2 fia@ w/mfssfs v /m/fNro/e E Gf Vo/cf/T er Maul/mowersTa sTaTns ATTTNT Tron.

HENRY Gr. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICANHARDWARE CORPORATION, OF NEW BRITAIN, CONNECTICUT, A CORPORATION- OFCONNECTICUT.

CONTROLLING- MEANS FOR SLIDING- CLOSURES.

Laoaais.

To all whom t may concern Be it known that I, HENRY G. Voici-IT, acitizen of the United States, lresidi'ng at New Britain, Hartfordcounty, StateofConnecticut, have invented certain new'andusefullmprovements in Controlling Means for Sliding Closures, of Vwhichthe following is a full, clear, and exact description.

This invention relates Y to controlling means for'sliding closures suchas the entrance doors to elevator wells and especially to'suchcontrollingV means providing arms connecting thel door and its casing,which arms, when the door is closed, are arranged to lock the dooragainst opening from the opposite side.

The present invention relates more particularly to controlling means foruse in connection with such arms, which controlling means requires butminimum effort to movethe arms to unlockedposition and to open the door.In addition the structure is designed,v to provider an apparatus whichwill be-especi'ally useful in connection with doors having glass panelsinV that the operating mechanism is concealed from View and does not marthe attractive yappearance of the doors from the opposite side.

To this end the invention consists in the structure described in detailin the following specification, taken in connection with theaccompanying drawings forming partthereof and' illustrating a preferableembodiment of the invention.

In these drawings, Figure 1 is a view in front elevation and from theinterior of the elevator well showing the embodiment of the presentinvention in a doorcontrolling meansl such as described. Fig. 2 is afragmentary view, in front elevation and ony an enlarged scale, of theforward edge of the door showing the controlling handle and itsconnections applied thereto. Fig. 3 is a. vertical section on the line3-3 of Fig. 2. Fig. 4 is a transverse section on the linee-Of Fig. 2.Figs. 5, 6 and 7 are v-iews'ofpdetails of structure.H

Speccaton of Letters Patent.

serial No. 45,257.

adjacent said pivoted end witha transverse` arrn`9 to whichfthevpistonrod 8 ofthe Apower cylinder is pivotally connected. The free endof the arm 10 is pivotally secured to the rear end of a second armllwhose forward end vis pivotally mounted upon a plate 12 whichconstitutesV a movable abutment and is secured to the door frame 1 atthe forward `edgel of the door. Theplate 12 is preferably provided withVa boss13 Vhaving a stud-11 formed thereon upon which the end ofthe arm11 isjournaled'. The two arms 'described forma toggle and with theplates 5 and 12 are positioned?preferably so that the arm l1 will:extend across the door in the plane of-the transverse partitioning strip3 so that with the door closed, the arm 11 will be hidden from view.This power cylinder 7, through its connection with the4 transverse armof the toggle arm 10 normally tends to swing said arm, and through it,arm'11 in a direction to move the door to closed position. Thecomponents of the two arms are so figured that when the door -is inclosed position, the pivot points of these arms are in horizontalalinement so that a dead center lock is provided against openingvmovement on the part of these arms. The 'specific lconstruction of thepower cylinder is immaterial as far as thepurposes of the presentlinvention are concerned. One form o-f-construction which Patented Nov.14:, 1916.

Application filed August 2S,A 1913, Serial No. 787,069.A Renewed August12, 1915.

the power cylinder may assumeis shown in my prior Patent No. 1,028,833.

constructed as'follows: The plate 12, secured to the forward edge of thedoor frame, is provided with a stud 15 at a point below the boss 13,which stud has its end reduced in diameter as at 16V to provide abearing upon which is journaled the upper end 17El of an operatinghandle 17. This` handle adjacent its lower'end is provided with anoffset 18 affording a hand grip for the operator. At its upperA pi-votedend the operating handle is provided with an :integral right angle Vextension 19 offset from the plane of the main body of the handle. At apoint in alinement with the vertical arm 19a of this extension, spacedlinks 2O are pivotally secured to the arm 1170i the toggle adjacent itspoint of pivotal connection to the door. These spacedli-nks are securedto the yopposite faces of the toggle arm and extend downwardly,embracing therebetween the vertical portion 19a of the handle extension,thelower end of which portion is pivotally mountedV between said linksas at 21. The length of the operating handle` 17 is much greater inproportion to the length of the links 20vand of the arm 19a of itsextension so that a powerful operating leverage is afforded against thetoggle arm 11. It will be evident, therefore, thatV when the operatorgrasps the operating handle and swings it away from the forward edge ofthe door and relative to the door and to the toggle, the toggle arm 11,through links 20, will Vbe moved upwardly to break the horizontalalinement of the toggle arms so that the door may be moved to openposition by a continued pull on the handle in the same direction, thepowerful leverage secured through handle 17 swinging the toggle armsupwardly and moving the door toward open position andagainst the forceof the closerV cylinder: This movement is accomplished with rapiditybecause' of the action of the operating handle against toggle arm 11 ata' point adjacent its pivoted end. When the handle is released, thepower of the closer cylinder will swing the arms downwardly and ingadirection to move the door to closed position, the operating handle andits connections to the toggle returning to the posi# tion shown in fulllines in Figs. Y1 and y2. The operating handle described provides apowerfulleveragel against the toggle arm 11 by reasonsot' thecompounding of the leverage through its arm 19er1 and links 2O so thatthe toggle lock may be broken and the door opened quickly with a minimumeffort on the part of the operator. At the same time, these connectionsare so arranged that they are invisible from the yopposite side of thedoor in case a glass panel is provided, the invention combiningeffectiveness of operation with concealment of the operating parts.

While I have herein described particular and specific embodimentf't'he'invention, it will be understood, of course, that the same may bevaried in structure and relative arrangement of parts within the spiritof the invention and the scope of the appended claims. n

What 1 claim, therefore, and desire to secure by Letters Patent, is:

` V1. Controlling means for sliding' doors comprising a pair ofconnected toggle levers, aj stationary abutment for the free end of .oneof said levers, a movable abutment for which the free en d of the lastmentioned toggle lever is mounted, another pivot on said abutment belowthe iirst mentioned pivot, an operating handle mounted thereon, alaterally extending arm on the operating handle, an upwardly projectingycoupling link pivotally mounted upon said extension and operativelyconnected with the last mentioned toggle link between its ends to bucklesaid toggles by the upward movement of said coupling link.

2. Controlling means for sliding doors comprising a pair of connectedtoggle levers, a stationary abutment for the free end of one of saidlevers, a movable abutment for theV other lever vcomprising a pivot uponwhich the free end of the last mentionedtoggle lever is mounted, anotherpivot on said abutment below the iirst mentioned pivot, an operatinghandle mounted thereon, a laterally extending arm on the operatinghandle, an upwardly projecting coupling link pivotally mounted upon saidextension and operatively connected with the last mentioned toggle linkbetween its, ends to buckle said toggles by the upward movement of saidcoupling link, said handle eX- tension projecting outwardly anddownwardly, said coupling link being connected to the lower part of saideXtension 3. Controlling means for sliding doors coupling link pivotallymounted upon said ing of said handle on said movable abutextension andoperatively connected with ment.

the last mentioned toggle link between its ends to buckle said togglesby the upward movement of said coupling link, the pivotal connectionbetween said coupling link and said handle being below the pivotalmount- HENRY G. VOIGHT.

Witnesses GWENDOLINE A. JACKSON, CHAS. E. RUSSELL.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

